Waterproof and dustproof fingerprint module edge sealing structure

Abstract

The utility model relates to a waterproof and dustproof fingerprint module edge sealing structure, which belongs to the technical field of fingerprint modules and is characterized in that a plurality of groups of air outlet holes are formed in the outer wall of the front surface of a machine body, a fingerprint module is arranged in the center of the machine body, and a sealing layer is arranged on the outer layer of the fingerprint module. A plurality of spiral microgrooves are formed in the inner wall of the sealing layer, a vacuum adsorption layer is arranged between the sealing layer and the filtering module, dustproof bins are symmetrically arranged on the left side and the right side of the machine body, V-shaped dust removal channels are formed in the inner walls of the dustproof bins, and permeated water drops can be discharged along the spiral microgrooves through the spiral microgrooves and the vacuum adsorption layer; then water drops are atomized under the action of piezoelectric ceramics, the multiple water removal effect is achieved, components of the equipment are prevented from being damaged by the water drops, through the arrangement of the V-shaped dust removal channel, the charged potential of residual particles can be conveniently lowered through the ion wind generator, dust is conveniently discharged out of the equipment through the lower layer of the V-shaped dust removal channel, and therefore the dust removal effect is achieved.

Description

Technical Field

[0001] This utility model relates to the field of fingerprint module technology, specifically to a waterproof and dustproof fingerprint module edge sealing structure. Background Technology

[0002] The fingerprint module is the core component of a fingerprint lock, installed on devices such as fingerprint access control systems or hard drives, and is used to collect and recognize fingerprints. As an important part of modern biometric technology, fingerprint modules are widely used in smartphones, tablets, access control systems, and many other fields. Their production process involves multiple disciplines such as precision manufacturing, materials science, and electronic engineering. However, when fingerprint modules are installed in electronic devices, they are often externally mounted and exposed to the air. Prolonged pressure from external forces can cause the fingerprint module to loosen, allowing dust and water droplets to enter through the gaps, compromising its waterproof and dustproof capabilities and severely impacting the lifespan of the electronic device.

[0003] In the prior art, the edge sealing structure of the fingerprint module will loosen and create gaps due to prolonged pressure when subjected to external force, allowing dust and water droplets to enter the device, resulting in decreased device performance and reduced service life. Therefore, a waterproof and dustproof edge sealing structure for fingerprint modules is proposed to solve the problems mentioned above. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a waterproof and dustproof fingerprint module edge sealing structure, which has waterproof and dustproof effects. Through structural innovation, it achieves multiple water and dust removal effects, is energy-efficient, can improve equipment performance and extend machine life, and ensure the normal operation of the equipment. It solves the problems of existing equipment not having multiple waterproof and dustproof functions and incomplete dust removal during use.

[0005] To achieve the above objectives, this utility model provides the following technical solution: It includes a body, characterized in that: a plurality of air vents are provided on the outer wall of the front of the body; a fingerprint module is installed at the center of the body; a sealing layer is installed on the outer layer of the fingerprint module; a plurality of spiral microgrooves are provided on the inner wall of the sealing layer; a filter module is installed outside the sealing layer; a vacuum adsorption layer is provided between the sealing layer and the filter module; a plurality of piezoelectric ceramics are installed on the inner wall of the body; and a vaporization layer is provided between the piezoelectric ceramics and the filter module.

[0006] Dustproof chambers are symmetrically installed on the left and right sides of the machine body. A V-shaped dust removal channel is opened in the inner wall of the dustproof chamber. A dust removal port is opened at the top of the V-shaped dust removal channel where it meets the outer wall of the dustproof chamber. A dust removal port is opened at the bottom of the V-shaped dust removal channel where it meets the outer wall of the dustproof chamber. A conductive silicone layer is installed on the rear side of the V-shaped dust removal channel. An ion wind generator is installed on the rear side of the conductive silicone layer.

[0007] Preferably, the fingerprint module, piezoelectric ceramic, and ion wind generator are all electrically connected, and the fingerprint module and the sealing layer are in a bonded state.

[0008] Preferably, a buffer assembly is fixedly connected to the four corners of the outer wall of the rear side of the sealing layer. The buffer assembly is made of microporous polyurethane material and has high compression resilience.

[0009] Preferably, the spiral microgroove has an overall spiral shape, the material of the spiral microgroove is high-elasticity silicone, and the bottom shape of the junction between the spiral microgroove and the vacuum adsorption layer is designed as a conical micropore.

[0010] Preferably, the material of the filtration module is a porous peptide filter plate with a porous structure on its surface.

[0011] Preferably, the vent and the vaporization layer are spatially connected.

[0012] Preferably, the conductive silicone layer is composed of a base material silicone rubber and a conductive filler carbon-based material. The outer wall of the conductive silicone layer has several through holes, and a dustproof mesh is installed inside the dustproof opening.

[0013] Compared with the prior art, this utility model provides a waterproof and dustproof fingerprint module edge sealing structure, which has the following beneficial effects:

[0014] 1. The edge sealing structure of this fingerprint module, through spiral microgrooves and a vacuum adsorption layer, can convert the pressure generated when the fingerprint module is pressed into centrifugal force through the spiral microgrooves, thereby actively expelling water droplets along the spiral microgrooves to achieve a preliminary waterproofing effect. The vacuum adsorption layer adsorbs water droplets, and then the water droplets are atomized by the piezoelectric ceramic, and then turned into gas and discharged to the outside of the device through the vent, achieving multiple water removal effects, thereby protecting the device and preventing the device from being damaged by water droplets.

[0015] 2. The edge sealing structure of this fingerprint module, through the establishment of a conductive silicone layer, facilitates the discharge of charge in the dust through electrostatic control, reducing particle adsorption. At the same time, under the charge neutralization effect generated by the ion wind generator, the potential of the residual particles is reduced, causing the dust to be unable to be adsorbed. Then, the dust that cannot be adsorbed is discharged to the outside of the equipment through the lower layer of the V-shaped dust removal channel, thereby further achieving the dust removal effect.

[0016] 3. The edge sealing structure of this fingerprint module, through the establishment of a sealing layer, allows the fingerprint module to be pressed. With the help of the sealing layer and the buffer component, a local negative pressure is generated in the vacuum adsorption layer, thereby quickly resetting the module. This prevents the edge of the fingerprint module from being loosened and gaps caused by prolonged pressure during long-term and frequent pressing, thus extending the service life of the device. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a perspective view of the internal structure of this utility model;

[0019] Figure 3 This is a three-dimensional view of the internal structure of the dustproof compartment of this utility model;

[0020] Figure 4 This is a top-view cross-sectional view of the present invention.

[0021] In the diagram: 1. Body; 2. Fingerprint module; 3. Sealing layer; 31. Spiral microgroove; 32. Buffer assembly; 4. Dustproof chamber; 41. Dust removal port; 42. Dustproof port; 43. Dustproof net; 44. Ion wind generator; 45. V-shaped dust removal channel; 46. Conductive silicone layer; 5. Filter module; 51. Vacuum adsorption layer; 6. Piezoelectric ceramic; 61. Vaporization layer; 7. Air outlet. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Example:

[0024] Please see Figures 1-4 The waterproof and dustproof fingerprint module edge sealing structure in this embodiment includes a body 1. Several sets of air vents 7 are provided on the outer wall of the front of the body 1. A fingerprint module 2 is installed in the center of the body 1. A sealing layer 3 is installed on the outer layer of the fingerprint module 2. Several spiral microgrooves 31 are provided on the inner wall of the sealing layer 3. A filter module 5 is installed on the outside of the sealing layer 3. A vacuum adsorption layer 51 is provided between the sealing layer 3 and the filter module 5. Several piezoelectric ceramics 6 are installed on the inner wall of the body 1. A vaporization layer 61 is provided between the piezoelectric ceramics 6 and the filter module 5.

[0025] Dustproof chambers 4 are symmetrically installed on the left and right sides of the body 1. A V-shaped dust removal channel 45 is opened in the inner wall of the dustproof chamber 4. A dust removal port 42 is opened at the top of the V-shaped dust removal channel 45 where it connects with the outer wall of the dustproof chamber 4. A dust removal port 41 is opened at the bottom of the V-shaped dust removal channel 45 where it connects with the outer wall of the dustproof chamber 4. A conductive silicone layer 46 is installed on the rear side of the V-shaped dust removal channel 45. An ion wind generator 44 is installed on the rear side of the conductive silicone layer 46.

[0026] Among them, the fingerprint module 2, the piezoelectric ceramic 6, and the ion wind generator 44 are all electrically connected, and the fingerprint module 2 and the sealing layer 3 are in a bonded state; the establishment of the sealing layer 3 makes it easy to seal the edge of the fingerprint module 2, thereby improving the performance of the fingerprint module 2.

[0027] Among them, buffer components 32 are fixedly connected at the four corners of the outer wall of the rear side of the sealing layer 3. The buffer components 32 are made of microporous polyurethane material and have high compression resilience. With the establishment of the buffer components 32, the fingerprint module 2 can be quickly reset in the vacuum adsorption layer 51 with the help of the sealing layer 3 and the buffer components 32 when it is pressed.

[0028] The spiral microgroove 31 has a spiral shape and is made of high-elasticity silicone. The bottom of the spiral microgroove 31 where it connects with the vacuum adsorption layer 51 is designed as a conical micropore. The spiral microgroove 31 allows the pressure generated when the fingerprint module 2 is pressed to be converted into centrifugal force, thereby actively expelling water droplets along the spiral microgroove 31. The conical micropore shape at the bottom of the spiral microgroove 31 ensures that the conical micropore is closed when the device is not under pressure, and opens when pressure is applied to facilitate drainage. The vacuum adsorption layer 51 facilitates the generation of local negative pressure to enhance the fit between the sealing layer 3 and the fingerprint module 2, while also helping the filter module 5 to adsorb water droplets.

[0029] The material of the filter module 5 is a porous peptide filter plate with a porous structure on its surface. By setting up the filter module 5, the material properties of the porous peptide filter plate can be used to adsorb the water droplets discharged from the spiral microgroove 31.

[0030] The vent 7 and the vaporization layer 61 are spatially connected. The vent 7 allows the piezoelectric ceramic 6 to generate a cavitation effect when water droplets enter the vaporization layer 61, causing the water droplets to atomize and then turn into gas, which is then discharged to the outside of the equipment through the vent 7.

[0031] The conductive silicone layer 46 is composed of a base material of silicone rubber and a conductive filler of carbon-based material. Several through holes are opened on the outer wall of the conductive silicone layer 46, and a dustproof net 43 is installed inside the dustproof port 42. The dustproof net 43 can easily intercept large-diameter dust outside the equipment. The conductive silicone layer 46 can easily release the charge in the dust through electrostatic control, reducing particle adsorption. At the same time, under the charge neutralization effect generated by the ion wind generator 44, the potential of the residual particles is reduced, and the dust cannot be adsorbed. Then, the dust that cannot be adsorbed is discharged to the outside of the equipment through the lower layer of the V-shaped dust removal channel 45.

[0032] The working principle of the above embodiment is as follows: In use, by pressing the fingerprint module 2, with the help of the sealing layer 3 and the buffer component 32, a local negative pressure enhancement is generated in the vacuum adsorption layer 51, thereby quickly resetting the fingerprint module 2. At the same time, the pressure generated when pressing the fingerprint module 2 is converted into centrifugal force through the spiral microgroove 31, thereby actively expelling the seeping water droplets along the spiral microgroove 31, achieving primary waterproofing. Furthermore, the bottom of the spiral microgroove 31 is set in a conical micropore shape to ensure that the conical micropore is closed when the device is not under pressure, and opens when pressure is applied to facilitate drainage, enhancing the sealing of the device. The discharged water droplets will then pass through the vacuum adsorption layer 51, and can be adsorbed by the filter module 5 using the material properties of the porous peptide filter plate, achieving a further waterproofing effect. Then, when the water droplets enter the air... After the cavitation layer 61, the piezoelectric ceramic 6 generates a cavitation effect that atomizes water droplets, which then turn into gas and are discharged to the outside of the equipment through the vent 7, achieving ultimate waterproofing. With the establishment of the dustproof net 43, when dust passes through the dustproof port 42, the dustproof net 43 will intercept large-diameter dust outside the equipment, achieving a preliminary dustproof effect. When the filtered dust passes through the conductive silicone layer 46, it will be subject to electrostatic control, thereby dissipating the charge in the dust and reducing particle adsorption, achieving a further dustproof effect. At the same time, many micropores are opened on the surface of the conductive silicone layer 46. Under the charge neutralization effect generated by the ion wind generator 44, the potential of the residual particles is reduced, and the dust cannot be adsorbed. Then, the dust that cannot be adsorbed is discharged to the outside of the equipment through the dust removal port 41 at the bottom of the V-shaped dust removal channel 45, achieving the ultimate dustproof effect.

Claims

1. A waterproof and dustproof fingerprint module edge sealing structure, comprising a machine body (1), characterized in that: The front outer wall of the machine body (1) is provided with a plurality of groups of air outlet holes (7), the center of the machine body (1) is provided with a fingerprint module (2), the outer layer of the fingerprint module (2) is provided with a sealing layer (3), the inner wall of the sealing layer (3) is provided with a plurality of spiral microgrooves (31), the outer part of the sealing layer (3) is provided with a filter module (5), a vacuum adsorption layer (51) is arranged between the sealing layer (3) and the filter module (5), and the inner wall of the machine body (1) is provided with a plurality of piezoelectric ceramics (6). A gasification layer (61) is arranged between the piezoelectric ceramic (6) and the filter module (5); The dustproof bin (4) is symmetrically arranged on the left and right sides of the machine body (1), the V-shaped dust removal channel (45) is arranged in the inner wall of the dustproof bin (4), the dustproof port (42) is arranged at the top of the V-shaped dust removal channel (45) and the outer wall of the dustproof bin (4), the dust removal port (41) is arranged at the bottom of the V-shaped dust removal channel (45) and the outer wall of the dustproof bin (4), the conductive silica gel layer (46) is arranged at the rear side of the V-shaped dust removal channel (45), and the ion wind generator (44) is arranged at the rear side of the conductive silica gel layer (46).

2. The waterproof and dustproof fingerprint module edge sealing structure according to claim 1, wherein: The fingerprint module (2), the piezoelectric ceramic (6) and the ion wind generator (44) are electrically connected, and the fingerprint module (2) and the sealing layer (3) are in a bonded state. 3.The waterproof and dustproof fingerprint module edge sealing structure of claim 1, wherein: The rear outer wall of the sealing layer (3) is fixedly connected with a buffer assembly (32) at four corners, the buffer assembly (32) is made of microporous polyurethane material and has high compression resilience.

4. The waterproof and dustproof fingerprint module edge sealing structure according to claim 1, wherein: The overall shape of the spiral microgroove (31) is spiral, the material of the spiral microgroove (31) is high-elasticity silica gel, and the bottom of the joint between the spiral microgroove (31) and the vacuum adsorption layer (51) is designed as a conical micropore. 5.The waterproof and dustproof fingerprint module edge sealing structure of claim 1, wherein: The filter module (5) is made of a porous peptide filter plate and has a porous structure on the surface. 6.The waterproof and dustproof fingerprint module edge sealing structure of claim 1, wherein: The air outlet hole (7) and the gasification layer (61) are in space communication. 7.The waterproof and dustproof fingerprint module edge sealing structure of claim 1, wherein: The conductive silica gel layer (46) is composed of a base material of silica rubber and a conductive filler of carbon-based material, a plurality of through holes are arranged on the outer wall of the conductive silica gel layer (46), and a dust screen (43) is arranged in the dustproof port (42).

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